Watch



(No Model.)

G. S. KLEIN. STEM WINDING WATCH.

No. 521,884. Patented June 26, 1894.

Wllzesses. g

UNITED STATES PATENT OFFICE.

GEORGE S. KLEIN, OF TORONTO, CANADA.

STEM-WINDING WATCH.

SPECIFICATION forming part of Letters Patent No. 521,884, dated June 26,1894.

Application filed February 23, 1894:- $erial No. 50L1'73. (No model.)

To 00% whom it may concern.-

Be it known that I, GEORGE S. KLEIN, watchmaker, of the city of Toronto,in the county of York, in the Province of Ontario, Canada, have inventedcertain new and useful Improvements in Stem-Winding Watches, of whichthe following is a specification.

My invention relates to watches in which the winding and hand settingtrain is shifted from the winding to the setting position and vice versaby the longitudinal movement of an arbor contained within the pendantand by the rotation of which the winding and setting movements areefiected and the object of the invention iSfi1'Sh'-tO provide a simple,effective and positive connection between the stem arbor and the trainof gear for changing the position of the yoke for winding or settingand--secondly-of providing a positive means for holding the yoke ineither position to which it maybe changed no matter whether the movementis in the case or removed from it and it consists essentially-firstofforming the stem arbor in two parts, the portion which extends throughthe pendant being connected to the portion which extends through thebevel pinion by a hollow split threaded plug, which is screwed into afemale threaded collar forming part of the portion of the spindleextending through the bevel pinion as hereinafter described, an annularring being made in said collar and means being provided whereby when thestem arbor is moved into its outer position the setting train of wheelsis thrown in and when the arboris moved into its inner position thewinding train of wheels is thrown into gear and-secondly-of connectingthe annular ring on the collar within which is secured the stem arbor toa notch in the yoke by a bell crank lever, the jaws of one arm of whichextend on each side of the annular ring on the collar and the end of theother arm being designed to co-act with the notch, a supplemental tailbeing provided which is notched and is designed to co-act with a springcrank, the long arm of which fits into a notch in the yoke and the shortarm of which is designed to co-act with the notch in the end of thesupplemental tail as hereinafter more particularly explained.

Figure 1, is an enlarged face view of portion of the center and movementplate of the watch showing the parts involved in my invention as theywill appear when the yoke is shifted to the winding position. Fig. 2, isa similar view showing the parts as they will appear when shifted to thesetting position. Fig. 3, is a much enlarged section through the line:r-y Fig. 1. Fig. 4, is an enlarged detail of the split threaded plug.

In the drawings like letters of reference indicate corresponding partsin each figure.

A, represents the watch center, 13, the pendant and O, the stem arbor,which has a rotary and longitudinal movement within the pendant in whichit may be held in two positions within such pendantnamely the windingand setting positions in the manner now commonly known. 'I do not showthe means of holding the stem arbor in such position as it is notessential in explaining the features of my invention.

D, is the movement plate which is secured within the center, B, in theusual way.

0', is a collar, which is provided with an annular projection, c, whichis located about midway between its ends.

0, is a square stem which forms part of the collar, O, and acontinuation of the stem arbor, 0, when the collar is connected to it inthe manner I shall now describe.

The collar, 0, has a cylindrical hole, 0 made in it from the outsidewhich is threaded as shown and is tapered at the top.

E, is a hollow, threaded plug, which has cut longitudinally in it aseries of splits, e. The inside hole, e, of the plug is mainlycylindrical except at the top, e which is square and of less diameterthan the cylindrical hole, but of slightly greater "diameter than thatof the stem arbor, that is to say when such plug is removed from withinthe threaded hole, 0 or only partially screwed within said hole. \Vhenthe plug, E, is screwed home as indicated in Fig. 3, the square size ofthe top of the plug securely grasps the stem arbor and prevents it frommoving longitudinally within the plug or in other words makes the stemarbor, C, collar, 0, and square stem, 0', as one piece.

The collar, 0', is journaled in the bearing box, F, in which it iscapable oflongitudinal adj ustment by the manipulation of the crown, G,of the pendant.

In order to connect the stem arbor, O, to the collar C, it is necessarybefore inserting the movement into the case to partially screw the plug,E, into the threaded hole 0 in the collar, 0. The collar, 0', is broughtaround so as to have a hole, 0 opposite to the hole, f, in the bearingF.A pinisinserted through both of these holes so as to hold the collar,0', from turning. The stem arbor, 0, may now be inserted in the squarehole, e at the top of the plug, which is of course large enough to admitit when the plug is only partially screwed into the collar. By nowturning the crown, G, to the right the plug is screwed home into thecollar, 0', and the edges of the hole, 6 being compressed inwardly gripthe sides of the stem arbor so as to make it perfectly solid with thecollar. In removing the movement from the center it is also of coursenecessary to insert the pin through the holes f, and, 0 so as to holdthe collar, 0, solid, and turn the crown, G, of the pendant in theopposite direction, so thatthe plug, E, may be lowered sufficiently, soas to release the stem arbor, 0.

Upon the square stem, 0', is placed the bevel pinion, H, used forwinding and setting. The bevel pinion, I, as will be seen on referenceto Fig. 3, is situated beneath the movement plate, D, and meshes with acrown gear, 2', formed on the gear wheel, I. The gear wheel I, hashearings on the movement plate and is secured in position within theyoke, J, by the plate, K, and left hand screw, 10, as indicated in Figs.1, 2, and 3. The gear wheel, I, meshes with the gear wheel, L, pivotedat one end of the yoke, such gear wheel, L, being indicated by fulllines in Fig. 1, and dotted lines in Fig. 2, and the gear wheel, I, alsomeshes with the gear wheel, M, pivoted in the opposite end of the yoke.

N, is the winding wheel, which is partially shown in full lines andpartially in dotted lines in Figs. 1 and 2.

O, is the minute hand setting gear, which meshes with the dial wheel,1?, by which the minute hand is set.

19, is a pinion secured on the gear wheel, 0, and designed to mesh withthe hour hand dial wheel, Q, as indicated in dotted lines.

R, is a bell-crank lever pivoted at, r, and having jaws 7*, which extendto each side of the annular projection, c, of the collar, 0'.

j, is a notch made in the yoke. This notch is designed to be engaged bythe arm, 0" of the bell-crank lever B, as indicated in Fig. 2,

. when it is designed to throw andhold the hands setting train in mesh.

T is tail forming part of the bell-crank lever and, S, is a spring crankpivoted at, 8. One end of the crank is V-shaped and engages with acorresponding notch, 0, made in the end of the tail, T The long springend of the crank lever, S, engages with the notch, j, made in the yoke,J.

When it is desired to throw the winding train into gear the crown, G, ispushed inwardly so as to remove the arm, 4*, of the bell crank lever, R,out of the notch,j, in the yoke, J, and bring the short end of thecrank, S, into the notch, T in the tail, T In this the normal positionof the setting and winding gear the winding train is shown to becomplete through the stem arbor, bevel pinion, H, crown gear '5, gearwheel, L, and winding wheel, N. When it is designed to change theposition of the yoke, so as to throwinto mesh the setting gear, thecrown, G, is pulled outwardly, so as to pull the stem arbor, O, collar,0', and jaws, 1", outwardly, thereby tilting the bell-crank lever, R, onits pivot so as to force the arm, 7, of such crank into the notch, j, ofthe yoke J, thereby changing the position of the yoke and throwing thegear wheel, M, into mesh with the gear wheel, 0, of the dial train ofgear. Bypushing the crown, G, inwardly after having set the hands theyoke and train of gear are restored to the normal position shown in Fig.1.

It will be noticed in the inward and outward pull of the stem arbor bythe crown, G, that the square stem, 0', forming practically one solidpart of the stem arbor will move longitudinally within the bevel pinion,without affecting its position upon the crown gear, 1'.

From this description it will be seen that I provide a very simple meansby which the stem arbor may be rigidly connected to the stem of thepinion and also whereby the position of the yoke may be changed, so asto throw in the winding or setting mechanism as desired.

I am enabled by the construction adopted to fit or remove the movementfrom the case without disturbing the winding or setting mechanism. I amalso enabled by my invention to readily connect the winding and settingmechanism of a certain sized movement to the stem arbor of any make ofcase of similar size.

In removing the movement from the case it is simply necessary ashereinbefore described to insert a pin into a hole in the collar, C. Itwill also be seen that the proper working of the movement will not beaffected when taken out of case nor will it be necessary to provide anysupplemental means for holding the parts of the winding and settingmechanism in their proper relative position when the movement is out ofthe case.

VVhat I claim as my invention is- 1. The combination with a stem arborof in determinate length in a case-pendant, of a collar, having a stemlongitudinally adj ustable within the bevel pinion by which the windingand setting train is set in motion, and connected to the stem arbor by ahollow threaded plug provided with a series of splits which plug isscrewed home into the collar, and means whereby the collar isoperatively connected to the yoke so as to change it to the setting orwinding positions as shown and for the purpose specified.

2. The combination with the stem arbor, C, in a case-pendant, of acollar, 0', having a square stem, 0', extending through the bevelpinion, H, a threaded plug, E, made hollow and provided with splits, e,and a square upper hole, e to grip the stern arbor and tapered at thetop so as to fit into a corresponding taper at the top, of thecylindrical hole 0 and an annular projection, a, made in the collar andmeans whereby the annular projection, c, is connected to the yoke, sothat the position of such yoke is changed to throw in the winding orsetting train as and for the purpose specified.

3. The combination with the stem arbor, O, collar, 0, connected to thestem arbor by the threaded split plug, E, as specified, and having anannular ring, 0, of the bevel pinion, H, meshing with the crown wheel,'i, of the gear wheel I, the yoke, J, containing the gear wheels, L,and, M, and the pivoted bell crank lever, R, provided-with jaws, a",which extend at each side of the annular projection, c, of the collar,0', the arm, r designed to be brought into engagement with the notch j,the

tail, r having a notch, r made in the end and the spring crank, 3, oneend of which fits into the notch, T and the other into the notch, j inthe yoke, J, as and for the purpose specified.

4:- The collar, 0, having a cylindrical hole, 0 threaded as specified,and the threaded plug, E, provided with splits, e, cylindrical opening,6', and the square top opening fe which plug, E, is screwed home intothe cylindrical threaded hole, 0 of the collar as and for the purposespecified.

5. The combination with the stem arbor, of the collar 0', split plug, E,designed to be inserted in a cylindrical socket in the collar and grip,by the square opening at the top of the plug, the stem arbor, and thebevel pinion H, situated on a square stem of the collar and designed tocommunicate motion to the windin g or setting trains, whichever may bethrown in, as and for the purpose specified.

GEORGE S. KLEIN. Witnesses:

B. BOYD, E. R. OAsE.

